ydeng/rhythmbullet
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added pellet gen

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This commit is contained in:
Harrison Deng 2017-07-11 16:17:27 -05:00
parent 0cf0609442
commit 897f802885
2 changed files with 65 additions and 44 deletions
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101
core/src/zero1hd/polyjet/audio/AudioAnalyzer.java
View File

@ -27,19 +27,21 @@ public class AudioAnalyzer {
private FloatArray bassPrunned = new FloatArray();
private FloatArray bassPeaks = new FloatArray();
private float bassMaxValue;
private float bassAvg;
int UMBinBegin;
int UMBinEnd;
private FloatArray UMSpectralFlux = new FloatArray();
private FloatArray UMThreshold = new FloatArray();
private FloatArray UMPrunned = new FloatArray();
private FloatArray UMPeaks = new FloatArray();
private FloatArray umSpectralFlux = new FloatArray();
private FloatArray umThreshold = new FloatArray();
private FloatArray umPrunned = new FloatArray();
private FloatArray umPeaks = new FloatArray();
private float UMMaxValue;
private float umAvg;
private FloatArray overlappedPeaks = new FloatArray();
float bassThresholdMultiplier;
float UMThresholdMultiplier;
float umThresholdMultiplier;
int UMThresholdCalcRange;
int bassThresholdCalcRange;
@ -64,7 +66,7 @@ public class AudioAnalyzer {
int totalTasks = audioData.getSampleCount()/audioData.getReadWindowSize();
bassThresholdMultiplier = 1.5f;
UMThresholdMultiplier = 2f;
umThresholdMultiplier = 2f;
bassBinBegin = 1;
bassBinEnd = 15;
@ -120,7 +122,7 @@ public class AudioAnalyzer {
fluxVal += ((spectrum[i] - lastSpectrum[i])) > 0
? (spectrum[i] - lastSpectrum[i]) : 0;
}
UMSpectralFlux.add(fluxVal);
umSpectralFlux.add(fluxVal);
tasksDone++;
progress = (int) (100f*tasksDone/totalTasks);
sender.send(MiniEvents.ANALYZER_ITERATED);
@ -142,12 +144,12 @@ public class AudioAnalyzer {
public void run() {
//threshold calculation
for (int i = 0; i < UMSpectralFlux.size && work; i++) {
for (int i = 0; i < umSpectralFlux.size && work; i++) {
int UMStart = Math.max(0, i - UMThresholdCalcRange/2);
int UMEnd = Math.min(UMSpectralFlux.size - 1, i + UMThresholdCalcRange/2);
int UMEnd = Math.min(umSpectralFlux.size - 1, i + UMThresholdCalcRange/2);
int bassStart = Math.max(0, i - bassThresholdCalcRange/2);
int bassEnd = Math.min(UMSpectralFlux.size - 1, i + bassThresholdCalcRange/2);
int bassEnd = Math.min(umSpectralFlux.size - 1, i + bassThresholdCalcRange/2);
float average = 0;
for (int j = bassStart; j <= bassEnd; j++) {
@ -158,10 +160,10 @@ public class AudioAnalyzer {
average = 0;
for (int j = UMStart; j <= UMEnd; j++) {
average+= UMSpectralFlux.get(j);
average+= umSpectralFlux.get(j);
}
average /= (UMEnd - UMStart);
UMThreshold.add(average*UMThresholdMultiplier);
umThreshold.add(average*umThresholdMultiplier);
}
Gdx.app.debug("Audio Analyzer", "Threshold calculated.");
@ -169,7 +171,7 @@ public class AudioAnalyzer {
//pruning data
float prunnedCurrentVal;
for (int i = 0; i < UMSpectralFlux.size && work; i++) {
for (int i = 0; i < umSpectralFlux.size && work; i++) {
prunnedCurrentVal = bassSpectralFlux.get(i) - bassThreshold.get(i);
if (prunnedCurrentVal >= 0) {
@ -178,12 +180,12 @@ public class AudioAnalyzer {
bassPrunned.add(0);
}
prunnedCurrentVal = UMSpectralFlux.get(i) - UMThreshold.get(i);
prunnedCurrentVal = umSpectralFlux.get(i) - umThreshold.get(i);
if (prunnedCurrentVal >= 0 ) {
UMPrunned.add(prunnedCurrentVal);
umPrunned.add(prunnedCurrentVal);
} else {
UMPrunned.add(0);
umPrunned.add(0);
}
@ -194,41 +196,56 @@ public class AudioAnalyzer {
//peak detection
int lastID = 0;
for (int i = 0; i < UMPrunned.size-1 && work; i++) {
float bassBeats = 0;
float umBeats = 0;
for (int i = 0; i < umPrunned.size-1 && work; i++) {
bassPeaks.add((bassPrunned.get(i) > bassPrunned.get(i+1) ? bassPrunned.get(i) : 0));
if (bassPeaks.get(i) > bassMaxValue) {
bassMaxValue = bassPeaks.get(i);
}
UMPeaks.add((UMPrunned.get(i) > UMPrunned.get(i+1) ? UMPrunned.get(i) : 0));
if (UMPeaks.get(i) > UMMaxValue) {
UMMaxValue = UMPeaks.get(i);
umPeaks.add((umPrunned.get(i) > umPrunned.get(i+1) ? umPrunned.get(i) : 0));
if (umPeaks.get(i) > UMMaxValue) {
UMMaxValue = umPeaks.get(i);
}
//overlapping beats
if (bassPeaks.get(i) != 0 && UMPeaks.get(i) != 0) {
overlappedPeaks.add(bassPeaks.get(i)+UMPeaks.get(i)/2);
if (bassPeaks.get(i) != 0 && umPeaks.get(i) != 0) {
overlappedPeaks.add(bassPeaks.get(i)+umPeaks.get(i)/2);
} else {
overlappedPeaks.add(0);
}
avgBPS = -1f;
float beats = 0;
if (avgBPS == -1 && bassPeaks.get(i) != 0) {
//this should actually equal to 1;
if (avgBPS != -1) {
if (bassPeaks.get(i) == 0) {
avgBPS ++;
} else {
bassBeats ++;
lastID = i;
}
} else if (bassPeaks.get(i) != 0) {
avgBPS = 0;
} else if (avgBPS == 0 && bassPeaks.get(i) == 0) {
avgBPS ++;
} else {
beats ++;
lastID = i;
}
//then we minus one from the beats so it actually works out
avgBPS -= UMPrunned.size-lastID;
avgBPS *= secondsPerWindow;
avgBPS = beats/avgBPS;
if (bassPeaks.get(i) != 0) {
bassAvg += bassPeaks.get(i);
}
if (umPeaks.get(i) != 0) {
umAvg += umPeaks.get(i);
umBeats++;
}
}
//then we minus one from the beats so it actually works out
avgBPS -= umPrunned.size-lastID;
avgBPS *= secondsPerWindow;
avgBPS /= bassBeats;
bassAvg /= bassBeats;
umBeats /= umBeats;
if (work) {
Gdx.app.debug("Audio Analyzer", "overlapped beats checked.");
@ -248,10 +265,10 @@ public class AudioAnalyzer {
bassPrunned.shrink();
bassPeaks.shrink();
UMSpectralFlux.shrink();
UMThreshold.shrink();
UMPrunned.shrink();
UMPeaks.shrink();
umSpectralFlux.shrink();
umThreshold.shrink();
umPrunned.shrink();
umPeaks.shrink();
overlappedPeaks.shrink();
}
@ -267,8 +284,8 @@ public class AudioAnalyzer {
}
public void runThresholdCleaning(float rangeModifier) {
this.bassThresholdMultiplier += rangeModifier;
this.UMThresholdMultiplier += rangeModifier;
this.bassThresholdMultiplier /= rangeModifier;
this.umThresholdMultiplier /= rangeModifier;
work = true;
Thread thresholdClean = new Thread(thresholdCalculator);
thresholdClean.start();
@ -283,7 +300,7 @@ public class AudioAnalyzer {
return bassPeaks;
}
public FloatArray getUMPeaks() {
return UMPeaks;
return umPeaks;
}
private int thresholdRangeCalc(float durationOfRange) {
@ -300,7 +317,7 @@ public class AudioAnalyzer {
}
public int getReadIndex() {
if (audioData.getReadIndex() < UMPeaks.size) {
if (audioData.getReadIndex() < umPeaks.size) {
return audioData.getReadIndex();
} else {
return 0;

8
core/src/zero1hd/polyjet/audio/map/RhythmMapAlgorithm.java
View File

@ -59,9 +59,13 @@ public class RhythmMapAlgorithm implements Runnable {
((Polyjet.GAME_AREA_HEIGHT-bassPeaks.get(index)*Polyjet.GAME_AREA_HEIGHT)/avgBPS)*speedMod);
} else {
if (UMPeaks.get(index) != 0) {
//TODO basic pellet scatter spawn
float xSpawnLocation = (rand.nextFloat()*(Polyjet.GAME_AREA_WIDTH-2))+1;
map.addToMap(Entities.PELLET,
xSpawnLocation,
Polyjet.GAME_AREA_HEIGHT-0.25f,
180+180*rand.nextFloat(),
speedMod*(Polyjet.GAME_AREA_HEIGHT/3)/avgBPS);
}
//TODO rest of the basic generation
}
} else {
map.addRestToMap();